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<div class="refentry">
<a name="gst-plugins-base-plugins-audiotestsrc"></a><div class="titlepage"></div>
<div class="refnamediv"><table width="100%"><tr>
<td valign="top">
<h2><span class="refentrytitle"><a name="gst-plugins-base-plugins-audiotestsrc.top_of_page"></a>audiotestsrc</span></h2>
<p>audiotestsrc</p>
</td>
<td class="gallery_image" valign="top" align="right"></td>
</tr></table></div>
<div class="refsect1">
<a name="gst-plugins-base-plugins-audiotestsrc.properties"></a><h2>Properties</h2>
<div class="informaltable"><table class="informaltable" border="0">
<colgroup>
<col width="150px" class="properties_type">
<col width="300px" class="properties_name">
<col width="200px" class="properties_flags">
</colgroup>
<tbody>
<tr>
<td class="property_type"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a></td>
<td class="property_name"><a class="link" href="gst-plugins-base-plugins-audiotestsrc.html#GstAudioTestSrc--can-activate-pull" title="The “can-activate-pull” property">can-activate-pull</a></td>
<td class="property_flags">Read / Write</td>
</tr>
<tr>
<td class="property_type"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a></td>
<td class="property_name"><a class="link" href="gst-plugins-base-plugins-audiotestsrc.html#GstAudioTestSrc--can-activate-push" title="The “can-activate-push” property">can-activate-push</a></td>
<td class="property_flags">Read / Write</td>
</tr>
<tr>
<td class="property_type"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a></td>
<td class="property_name"><a class="link" href="gst-plugins-base-plugins-audiotestsrc.html#GstAudioTestSrc--freq" title="The “freq” property">freq</a></td>
<td class="property_flags">Read / Write</td>
</tr>
<tr>
<td class="property_type"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a></td>
<td class="property_name"><a class="link" href="gst-plugins-base-plugins-audiotestsrc.html#GstAudioTestSrc--is-live" title="The “is-live” property">is-live</a></td>
<td class="property_flags">Read / Write</td>
</tr>
<tr>
<td class="property_type"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a></td>
<td class="property_name"><a class="link" href="gst-plugins-base-plugins-audiotestsrc.html#GstAudioTestSrc--samplesperbuffer" title="The “samplesperbuffer” property">samplesperbuffer</a></td>
<td class="property_flags">Read / Write</td>
</tr>
<tr>
<td class="property_type"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint64"><span class="type">gint64</span></a></td>
<td class="property_name"><a class="link" href="gst-plugins-base-plugins-audiotestsrc.html#GstAudioTestSrc--timestamp-offset" title="The “timestamp-offset” property">timestamp-offset</a></td>
<td class="property_flags">Read / Write</td>
</tr>
<tr>
<td class="property_type"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a></td>
<td class="property_name"><a class="link" href="gst-plugins-base-plugins-audiotestsrc.html#GstAudioTestSrc--volume" title="The “volume” property">volume</a></td>
<td class="property_flags">Read / Write</td>
</tr>
<tr>
<td class="property_type"><a class="link" href="gst-plugins-base-plugins-audiotestsrc.html#GstAudioTestSrcWave" title="enum GstAudioTestSrcWave"><span class="type">GstAudioTestSrcWave</span></a></td>
<td class="property_name"><a class="link" href="gst-plugins-base-plugins-audiotestsrc.html#GstAudioTestSrc--wave" title="The “wave” property">wave</a></td>
<td class="property_flags">Read / Write</td>
</tr>
<tr>
<td class="property_type"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a></td>
<td class="property_name"><a class="link" href="gst-plugins-base-plugins-audiotestsrc.html#GstAudioTestSrc--apply-tick-ramp" title="The “apply-tick-ramp” property">apply-tick-ramp</a></td>
<td class="property_flags">Read / Write</td>
</tr>
<tr>
<td class="property_type"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a></td>
<td class="property_name"><a class="link" href="gst-plugins-base-plugins-audiotestsrc.html#GstAudioTestSrc--marker-tick-period" title="The “marker-tick-period” property">marker-tick-period</a></td>
<td class="property_flags">Read / Write</td>
</tr>
<tr>
<td class="property_type"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a></td>
<td class="property_name"><a class="link" href="gst-plugins-base-plugins-audiotestsrc.html#GstAudioTestSrc--marker-tick-volume" title="The “marker-tick-volume” property">marker-tick-volume</a></td>
<td class="property_flags">Read / Write</td>
</tr>
<tr>
<td class="property_type"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a></td>
<td class="property_name"><a class="link" href="gst-plugins-base-plugins-audiotestsrc.html#GstAudioTestSrc--sine-periods-per-tick" title="The “sine-periods-per-tick” property">sine-periods-per-tick</a></td>
<td class="property_flags">Read / Write</td>
</tr>
<tr>
<td class="property_type"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint64"><span class="type">guint64</span></a></td>
<td class="property_name"><a class="link" href="gst-plugins-base-plugins-audiotestsrc.html#GstAudioTestSrc--tick-interval" title="The “tick-interval” property">tick-interval</a></td>
<td class="property_flags">Read / Write</td>
</tr>
</tbody>
</table></div>
</div>
<a name="GstAudioTestSrc"></a><div class="refsect1">
<a name="gst-plugins-base-plugins-audiotestsrc.other"></a><h2>Types and Values</h2>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="name">
<col class="description">
</colgroup>
<tbody>
<tr>
<td class="datatype_keyword">struct</td>
<td class="function_name"><a class="link" href="gst-plugins-base-plugins-audiotestsrc.html#GstAudioTestSrc-struct" title="struct GstAudioTestSrc">GstAudioTestSrc</a></td>
</tr>
<tr>
<td class="datatype_keyword">enum</td>
<td class="function_name"><a class="link" href="gst-plugins-base-plugins-audiotestsrc.html#GstAudioTestSrcWave" title="enum GstAudioTestSrcWave">GstAudioTestSrcWave</a></td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect1">
<a name="gst-plugins-base-plugins-audiotestsrc.object-hierarchy"></a><h2>Object Hierarchy</h2>
<pre class="screen">    <a href="/usr/share/gtk-doc/html/gobject/gobject-The-Base-Object-Type.html#GObject-struct">GObject</a>
    <span class="lineart">╰──</span> <a href="/usr/share/gtk-doc/html/gobject/gobject-The-Base-Object-Type.html#GInitiallyUnowned">GInitiallyUnowned</a>
        <span class="lineart">╰──</span> <a href="/usr/share/gtk-doc/html/gstreamer-1.0/GstObject.html#GstObject-struct">GstObject</a>
            <span class="lineart">╰──</span> <a href="/usr/share/gtk-doc/html/gstreamer-1.0/GstElement.html#GstElement-struct">GstElement</a>
                <span class="lineart">╰──</span> <a href="/usr/share/gtk-doc/html/gstreamer-libs-1.0/GstBaseSrc.html#GstBaseSrc-struct">GstBaseSrc</a>
                    <span class="lineart">╰──</span> GstAudioTestSrc
</pre>
</div>
<div class="refsect1">
<a name="gst-plugins-base-plugins-audiotestsrc.description"></a><h2>Description</h2>
<p>AudioTestSrc can be used to generate basic audio signals. It support several
different waveforms and allows to set the base frequency and volume. Some
waveforms might use additional properties.</p>
<p>Waveform specific notes:</p>
<div class="orderedlist"><ol class="orderedlist" type="1">
<li class="listitem"><div class="itemizedlist">
<p class="title"><b>Gaussian white noise</b></p>
<ul class="itemizedlist" style="list-style-type: disc; "></ul>
</div></li>
<li class="listitem"><div class="itemizedlist">
<p class="title"><b>Ticks</b></p>
<ul class="itemizedlist" style="list-style-type: disc; "></ul>
</div></li>
</ol></div>
<div class="refsect3">
<a name="id-1.2.13.7.5"></a><h4>Example launch line</h4>
<div class="informalexample">
  <table class="listing_frame" border="0" cellpadding="0" cellspacing="0">
    <tbody>
      <tr>
        <td class="listing_lines" align="right"><pre>1</pre></td>
        <td class="listing_code"><pre class="programlisting">gst<span class="gtkdoc opt">-</span>launch<span class="gtkdoc opt">-</span><span class="number">1.0</span> audiotestsrc <span class="gtkdoc opt">!</span> audioconvert <span class="gtkdoc opt">!</span> autoaudiosink</pre></td>
      </tr>
    </tbody>
  </table>
</div>

<p>
 This pipeline produces a sine with default frequency, 440 Hz, and the
default volume, 0.8 (relative to a maximum 1.0).</p>
<div class="informalexample">
  <table class="listing_frame" border="0" cellpadding="0" cellspacing="0">
    <tbody>
      <tr>
        <td class="listing_lines" align="right"><pre>1
2</pre></td>
        <td class="listing_code"><pre class="programlisting">gst<span class="gtkdoc opt">-</span>launch<span class="gtkdoc opt">-</span><span class="number">1.0</span> audiotestsrc wave<span class="gtkdoc opt">=</span><span class="number">2</span> freq<span class="gtkdoc opt">=</span><span class="number">200</span> <span class="gtkdoc opt">!</span> tee name<span class="gtkdoc opt">=</span>t <span class="gtkdoc opt">!</span> queue <span class="gtkdoc opt">!</span> audioconvert <span class="gtkdoc opt">!</span> \
    autoaudiosink t<span class="gtkdoc opt">. !</span> queue <span class="gtkdoc opt">!</span> audioconvert <span class="gtkdoc opt">!</span> libvisual_lv_scope <span class="gtkdoc opt">!</span> videoconvert <span class="gtkdoc opt">!</span> autovideosink</pre></td>
      </tr>
    </tbody>
  </table>
</div>

<p>
 In this example a saw wave is generated. The wave is shown using a
scope visualizer from libvisual, allowing you to visually verify that
the saw wave is correct.</p>
<div class="informalexample">
  <table class="listing_frame" border="0" cellpadding="0" cellspacing="0">
    <tbody>
      <tr>
        <td class="listing_lines" align="right"><pre>1
2</pre></td>
        <td class="listing_code"><pre class="programlisting">gst<span class="gtkdoc opt">-</span>launch<span class="gtkdoc opt">-</span><span class="number">1.0</span> audiotestsrc wave<span class="gtkdoc opt">=</span>ticks apply<span class="gtkdoc opt">-</span>tick<span class="gtkdoc opt">-</span>ramp<span class="gtkdoc opt">=</span><span class="keyword">true</span> tick<span class="gtkdoc opt">-</span>interval<span class="gtkdoc opt">=</span><span class="number">100000000</span> \
    freq<span class="gtkdoc opt">=</span><span class="number">10000</span> volume<span class="gtkdoc opt">=</span><span class="number">0.4</span> marker<span class="gtkdoc opt">-</span>tick<span class="gtkdoc opt">-</span>period<span class="gtkdoc opt">=</span><span class="number">10</span> sine<span class="gtkdoc opt">-</span>periods<span class="gtkdoc opt">-</span>per<span class="gtkdoc opt">-</span>tick<span class="gtkdoc opt">=</span><span class="number">20</span> <span class="gtkdoc opt">!</span> autoaudiosink</pre></td>
      </tr>
    </tbody>
  </table>
</div>

<p> This pipeline produces a series of 10 kHz sine wave ticks. Each tick is
20 sine wave periods long, ticks occur every 100 ms and have a volume of
0.4. Every 10th tick is a marker tick and has the default marker tick volume
of 1.0. The beginning and end of the ticks are modulated with the ramp.</p>
</div>
<div class="refsynopsisdiv">
<h2>Synopsis</h2>
<div class="refsect2">
<a name="id-1.2.13.7.6.1"></a><h3>Element Information</h3>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term">plugin</span></p></td>
<td>
            <a class="link" href="gst-plugins-base-plugins-plugin-audiotestsrc.html#plugin-audiotestsrc">audiotestsrc</a>
          </td>
</tr>
<tr>
<td><p><span class="term">author</span></p></td>
<td>Stefan Kost &lt;ensonic@users.sf.net&gt;</td>
</tr>
<tr>
<td><p><span class="term">class</span></p></td>
<td>Source/Audio</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="id-1.2.13.7.6.2"></a><h3>Element Pads</h3>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term">name</span></p></td>
<td>src</td>
</tr>
<tr>
<td><p><span class="term">direction</span></p></td>
<td>source</td>
</tr>
<tr>
<td><p><span class="term">presence</span></p></td>
<td>always</td>
</tr>
<tr>
<td><p><span class="term">details</span></p></td>
<td>audio/x-raw, format=(string){ S16LE, S16BE, U16LE, U16BE, S24_32LE, S24_32BE, U24_32LE, U24_32BE, S32LE, S32BE, U32LE, U32BE, S24LE, S24BE, U24LE, U24BE, S20LE, S20BE, U20LE, U20BE, S18LE, S18BE, U18LE, U18BE, F32LE, F32BE, F64LE, F64BE, S8, U8 }, layout=(string){ interleaved, non-interleaved }, rate=(int)[ 1, 2147483647 ], channels=(int)[ 1, 2147483647 ]</td>
</tr>
</tbody>
</table></div>
</div>
</div>
</div>
<div class="refsect1">
<a name="gst-plugins-base-plugins-audiotestsrc.functions_details"></a><h2>Functions</h2>
<p></p>
</div>
<div class="refsect1">
<a name="gst-plugins-base-plugins-audiotestsrc.other_details"></a><h2>Types and Values</h2>
<div class="refsect2">
<a name="GstAudioTestSrc-struct"></a><h3>struct GstAudioTestSrc</h3>
<pre class="programlisting">struct GstAudioTestSrc;</pre>
<p>audiotestsrc object structure.</p>
</div>
<hr>
<div class="refsect2">
<a name="GstAudioTestSrcWave"></a><h3>enum GstAudioTestSrcWave</h3>
<p>Different types of supported sound waves.</p>
<div class="refsect3">
<a name="GstAudioTestSrcWave.members"></a><h4>Members</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="300px" class="enum_members_name">
<col class="enum_members_description">
<col width="200px" class="enum_members_annotations">
</colgroup>
<tbody>
<tr>
<td class="enum_member_name"><p><a name="GST-AUDIO-TEST-SRC-WAVE-SINE:CAPS"></a>GST_AUDIO_TEST_SRC_WAVE_SINE</p></td>
<td class="enum_member_description">
<p>a sine wave</p>
</td>
<td class="enum_member_annotations"> </td>
</tr>
<tr>
<td class="enum_member_name"><p><a name="GST-AUDIO-TEST-SRC-WAVE-SQUARE:CAPS"></a>GST_AUDIO_TEST_SRC_WAVE_SQUARE</p></td>
<td class="enum_member_description">
<p>a square wave</p>
</td>
<td class="enum_member_annotations"> </td>
</tr>
<tr>
<td class="enum_member_name"><p><a name="GST-AUDIO-TEST-SRC-WAVE-SAW:CAPS"></a>GST_AUDIO_TEST_SRC_WAVE_SAW</p></td>
<td class="enum_member_description">
<p>a saw wave</p>
</td>
<td class="enum_member_annotations"> </td>
</tr>
<tr>
<td class="enum_member_name"><p><a name="GST-AUDIO-TEST-SRC-WAVE-TRIANGLE:CAPS"></a>GST_AUDIO_TEST_SRC_WAVE_TRIANGLE</p></td>
<td class="enum_member_description">
<p>a tringle wave</p>
</td>
<td class="enum_member_annotations"> </td>
</tr>
<tr>
<td class="enum_member_name"><p><a name="GST-AUDIO-TEST-SRC-WAVE-SILENCE:CAPS"></a>GST_AUDIO_TEST_SRC_WAVE_SILENCE</p></td>
<td class="enum_member_description">
<p>silence</p>
</td>
<td class="enum_member_annotations"> </td>
</tr>
<tr>
<td class="enum_member_name"><p><a name="GST-AUDIO-TEST-SRC-WAVE-WHITE-NOISE:CAPS"></a>GST_AUDIO_TEST_SRC_WAVE_WHITE_NOISE</p></td>
<td class="enum_member_description">
<p>white uniform noise</p>
</td>
<td class="enum_member_annotations"> </td>
</tr>
<tr>
<td class="enum_member_name"><p><a name="GST-AUDIO-TEST-SRC-WAVE-PINK-NOISE:CAPS"></a>GST_AUDIO_TEST_SRC_WAVE_PINK_NOISE</p></td>
<td class="enum_member_description">
<p>pink noise</p>
</td>
<td class="enum_member_annotations"> </td>
</tr>
<tr>
<td class="enum_member_name"><p><a name="GST-AUDIO-TEST-SRC-WAVE-SINE-TAB:CAPS"></a>GST_AUDIO_TEST_SRC_WAVE_SINE_TAB</p></td>
<td class="enum_member_description">
<p>sine wave using a table</p>
</td>
<td class="enum_member_annotations"> </td>
</tr>
<tr>
<td class="enum_member_name"><p><a name="GST-AUDIO-TEST-SRC-WAVE-TICKS:CAPS"></a>GST_AUDIO_TEST_SRC_WAVE_TICKS</p></td>
<td class="enum_member_description">
<p>periodic ticks</p>
</td>
<td class="enum_member_annotations"> </td>
</tr>
<tr>
<td class="enum_member_name"><p><a name="GST-AUDIO-TEST-SRC-WAVE-GAUSSIAN-WHITE-NOISE:CAPS"></a>GST_AUDIO_TEST_SRC_WAVE_GAUSSIAN_WHITE_NOISE</p></td>
<td class="enum_member_description">
<p>white (zero mean) Gaussian noise</p>
</td>
<td class="enum_member_annotations"> </td>
</tr>
<tr>
<td class="enum_member_name"><p><a name="GST-AUDIO-TEST-SRC-WAVE-RED-NOISE:CAPS"></a>GST_AUDIO_TEST_SRC_WAVE_RED_NOISE</p></td>
<td class="enum_member_description">
<p>red (brownian) noise</p>
</td>
<td class="enum_member_annotations"> </td>
</tr>
<tr>
<td class="enum_member_name"><p><a name="GST-AUDIO-TEST-SRC-WAVE-BLUE-NOISE:CAPS"></a>GST_AUDIO_TEST_SRC_WAVE_BLUE_NOISE</p></td>
<td class="enum_member_description">
<p>spectraly inverted pink noise</p>
</td>
<td class="enum_member_annotations"> </td>
</tr>
<tr>
<td class="enum_member_name"><p><a name="GST-AUDIO-TEST-SRC-WAVE-VIOLET-NOISE:CAPS"></a>GST_AUDIO_TEST_SRC_WAVE_VIOLET_NOISE</p></td>
<td class="enum_member_description">
<p>spectraly inverted red (brownian) noise</p>
</td>
<td class="enum_member_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
</div>
</div>
<div class="refsect1">
<a name="gst-plugins-base-plugins-audiotestsrc.property-details"></a><h2>Property Details</h2>
<div class="refsect2">
<a name="GstAudioTestSrc--can-activate-pull"></a><h3>The <code class="literal">“can-activate-pull”</code> property</h3>
<pre class="programlisting">  “can-activate-pull”        <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a></pre>
<p>Can activate in pull mode.</p>
<p>Flags: Read / Write</p>
<p>Default value: FALSE</p>
</div>
<hr>
<div class="refsect2">
<a name="GstAudioTestSrc--can-activate-push"></a><h3>The <code class="literal">“can-activate-push”</code> property</h3>
<pre class="programlisting">  “can-activate-push”        <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a></pre>
<p>Can activate in push mode.</p>
<p>Flags: Read / Write</p>
<p>Default value: TRUE</p>
</div>
<hr>
<div class="refsect2">
<a name="GstAudioTestSrc--freq"></a><h3>The <code class="literal">“freq”</code> property</h3>
<pre class="programlisting">  “freq”                     <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a></pre>
<p>Frequency of test signal. The sample rate needs to be at least 4 times higher.</p>
<p>Flags: Read / Write</p>
<p>Allowed values: [0,5.36871e+08]</p>
<p>Default value: 440</p>
</div>
<hr>
<div class="refsect2">
<a name="GstAudioTestSrc--is-live"></a><h3>The <code class="literal">“is-live”</code> property</h3>
<pre class="programlisting">  “is-live”                  <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a></pre>
<p>Whether to act as a live source.</p>
<p>Flags: Read / Write</p>
<p>Default value: FALSE</p>
</div>
<hr>
<div class="refsect2">
<a name="GstAudioTestSrc--samplesperbuffer"></a><h3>The <code class="literal">“samplesperbuffer”</code> property</h3>
<pre class="programlisting">  “samplesperbuffer”         <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a></pre>
<p>Number of samples in each outgoing buffer.</p>
<p>Flags: Read / Write</p>
<p>Allowed values: &gt;= 1</p>
<p>Default value: 1024</p>
</div>
<hr>
<div class="refsect2">
<a name="GstAudioTestSrc--timestamp-offset"></a><h3>The <code class="literal">“timestamp-offset”</code> property</h3>
<pre class="programlisting">  “timestamp-offset”         <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint64"><span class="type">gint64</span></a></pre>
<p>An offset added to timestamps set on buffers (in ns).</p>
<p>Flags: Read / Write</p>
<p>Default value: 0</p>
</div>
<hr>
<div class="refsect2">
<a name="GstAudioTestSrc--volume"></a><h3>The <code class="literal">“volume”</code> property</h3>
<pre class="programlisting">  “volume”                   <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a></pre>
<p>Volume of test signal.</p>
<p>Flags: Read / Write</p>
<p>Allowed values: [0,1]</p>
<p>Default value: 0.8</p>
</div>
<hr>
<div class="refsect2">
<a name="GstAudioTestSrc--wave"></a><h3>The <code class="literal">“wave”</code> property</h3>
<pre class="programlisting">  “wave”                     <a class="link" href="gst-plugins-base-plugins-audiotestsrc.html#GstAudioTestSrcWave" title="enum GstAudioTestSrcWave"><span class="type">GstAudioTestSrcWave</span></a></pre>
<p>Oscillator waveform.</p>
<p>Flags: Read / Write</p>
<p>Default value: Sine</p>
</div>
<hr>
<div class="refsect2">
<a name="GstAudioTestSrc--apply-tick-ramp"></a><h3>The <code class="literal">“apply-tick-ramp”</code> property</h3>
<pre class="programlisting">  “apply-tick-ramp”          <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a></pre>
<p>Apply ramp to tick samples.</p>
<p>Flags: Read / Write</p>
<p>Default value: FALSE</p>
</div>
<hr>
<div class="refsect2">
<a name="GstAudioTestSrc--marker-tick-period"></a><h3>The <code class="literal">“marker-tick-period”</code> property</h3>
<pre class="programlisting">  “marker-tick-period”       <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a></pre>
<p>Make every Nth tick a marker tick (= a tick with different volume). Only used if wave = ticks. 0 = no marker ticks.</p>
<p>Flags: Read / Write</p>
<p>Default value: 0</p>
</div>
<hr>
<div class="refsect2">
<a name="GstAudioTestSrc--marker-tick-volume"></a><h3>The <code class="literal">“marker-tick-volume”</code> property</h3>
<pre class="programlisting">  “marker-tick-volume”       <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a></pre>
<p>Volume of marker ticks. Only used if wave = ticks andmarker-tick-period is set to a nonzero value.</p>
<p>Flags: Read / Write</p>
<p>Allowed values: [0,1]</p>
<p>Default value: 1</p>
</div>
<hr>
<div class="refsect2">
<a name="GstAudioTestSrc--sine-periods-per-tick"></a><h3>The <code class="literal">“sine-periods-per-tick”</code> property</h3>
<pre class="programlisting">  “sine-periods-per-tick”    <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a></pre>
<p>Number of sine wave periods in one tick. Only used if wave = ticks.</p>
<p>Flags: Read / Write</p>
<p>Allowed values: &gt;= 1</p>
<p>Default value: 10</p>
</div>
<hr>
<div class="refsect2">
<a name="GstAudioTestSrc--tick-interval"></a><h3>The <code class="literal">“tick-interval”</code> property</h3>
<pre class="programlisting">  “tick-interval”            <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint64"><span class="type">guint64</span></a></pre>
<p>Distance between start of current and start of next tick, in nanoseconds.</p>
<p>Flags: Read / Write</p>
<p>Allowed values: &gt;= 1</p>
<p>Default value: 1000000000</p>
</div>
</div>
</div>
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